UPSC CDS 1 2024 Unofficial Answer Key (Available): All Sets Questions with Answers

Intajur Rahaman

Updated On: April 22, 2024 04:03 pm IST

The UPSC CDS 1 2024 Unofficial Answer Key has been provided here, which will help aspirants estimate their score for the exam and also gauge how well they performed on the exam. 
UPSC CDS 1 2024 Unofficial Answer KeyUPSC CDS 1 2024 Unofficial Answer Key

UPSC CDS 1 2024 Unofficial Answer Key: The Union Public Service Commission (UPSC) has conducted the UPSC CDS 1 2024 exam on April 21. The UPSC CDS 2024 question paper comprised of English, General Knowledge, and Elementary Mathematics, together adding up to a total of 300 marks. Aspirants who appeared for the exam can check the UPSC CDS 1 2024 unofficial answer key right here to calculate their rough scores before the official final answer key is released. The UPSC CDS official answer key is expected to be released a few days after the exam. Take a look at the UPSC CDS unofficial answer key with questions and answers from all sets right here!

Also Read:UPSC CDS 1 2024 Question Paper Analysis

UPSC CDS 1 2024 Unofficial Answer Key: All Series Questions with Answers

The question-wise answer key for all series of the UPSC CDS 1 2024 paper has been mentioned in the table below:

English

Serial Number

Question

Answer

1.

  • Identify which word class the underlined word belongs to.
    1. She sings much better than I do.
    2. The Story was all in the dailies
    3. What made you choose the one rather than the other?
    4. Smoking is injurious to health.
    5. There is still some water in the bottle.
  1. Adverb
  2. Noun
  3. Participle
  4. Pronoun
  5. Determiner
2.
  • Prepositions & Determiners
    1. I'm fed up ___ you.
    2. We had a discussion ___ the project.
    3. She is capable ___ winning the race.
    4. Her first novel has been translated ___ many languages.
  1. with
  2. about
  3. of
  4. to
3.
  • Synonyms
    1. Winning the World Cup was the most exhilarating moment for the India Cricket Team
    2. The hotel rooms have dingy walls.
    3. Keshav planned the event with fastidious care.
    4. Justice prevailed and the murdered was decapitated.
    5. Her left leg was paralyzed due to her debilitating disease.
  1. thrilling
  2. hazy
  3. meticulous
  4. beheaded
  5. crippling
4.
  • Usage of Paired Words
    1. Compliment and Complement
    2. Stationary and Stationery
    3. Deify and Defy
    4. Complaisant and Complacent
    5. Enquiry and Inquiry
  1. Compliment means to praise and complement means to blend well with
  2. Deify means to conquer upon the status of god and defy means to oppose
  3. Stationery means writing and office supplies and stationary means immobile.
  4. Complaisant means eager to please and complacent means overconfident.
  5. Enquiry means to investigate and inquiry means to seek information.
5.
  • Adaptation of Borrowed Words
    1. Aplomb
    2. Condign 
    3. Gastronomy
    4. Incommunicado
    5. Expatriate
  1. Self-confidence.
  2. Punishment appropriate to wrongdoing
  3. Art of fine food and eating
  4. Not wanting to or able to communicate.
  5. Resident outside country of citizenship.
6.
  • Antonyms
    1. She accepted the prospect of her medical treatment with equanimity.
    2. He had been vehement in opposing the idea.
    3. He indulges in nefarious activities.
    4. When he was born his family was indigent.
    5. All of us are living in turbulent times.
  1. agitation
  2. subdued
  3. admirable
  4. affluent
  5. tranquil
7.
  • Idioms and Phrases
    1. Walking on Eggshells
    2. Elephant in the room
    3. Feather your own nest
    4. Neither fish nor fowl
    5. The ship has sailed
  1. Careful not to offend or upset others.
  2. The obvious problem that is being avoided.
  3. To make money for oneself by way of dishonest means.
  4. Neither this or that
  5. The opportunity has passed.
8.
  • Use of Phrasal Verbs
    1. She was advised by her coach to ___ to form if she wanted to do well in the tournament.
    2. The boisterous crowd ____ with its merry-making even amidst pouring rain.
    3. She said goodbye and ____ along the road.
    4. The team reported that they had ___ the contract with tooth and comb before forwarding its recommendation.
    5. The goons ___ the unsuspecting victims when the latter walked into the dark alley.
  1. get back
  2. carried on
  3. tripped off
  4. pored over
  5. set upon
9.
  • Fill in the Blanks
    1. I shall not be going to the theatre ___.
      • if it may snow
      • if it snow
      • if it snows
      • if snowed
    2. ___ than a hundred passengers were killed in the recent train accident.
      • Less
      • No less
      • Fewest
      • No fewer
    3. Each of these paintings ___ made by a famous painter.
      • are
      • is
      • be
      • should
    4. This is an are of ____ dense population.
      • extremely
      • totally
      • tangeitally
      • languidly
    5. Reading ability in young children ____ by speech disorders.
      • effected
      • affected
      • is effected
      • is affected
  1. if it snows
  2. No less
  3. are
  4. extremely
  5. is affected

General Knowledge

Serial Number

Question

Answer

1.

Which of the following indicators is/are used to observe the monetary transmission mechanism in the economy

Weighted Average Lending Rate, Weighted Average Domestic Deposit Rate, 1 Year Median MCLR

2.If India enters into Free Trade Agreements with other nations, the growth of exports in India will be determined by which factors?Extent of tariff reduction vis-a-vis MFN tariffs, extent of relaxation of rules of origin, extent of relaxation in sanitary and physiotherapy measures, level of infrastructure in India, Income of other nations with FTA.
3.Identify the type of cloud based on the following:
  • High, thin, puffy, white clouds of ice crystals that look like ripples.
  • They appear between 20,000 and 40,000 feet above Earth's surface.
  • One of its types is called the mackerel sky because the clouds resemble large fish scales especially when coloured pink at sunset.
Cirrocumulus
4.Which of the following industries was most affected by the de-industrialization of India in the 19th century?
  • Silk Manufacture
  • Iron and steel industries
  • Cotten textile
  • Woolen Manufacture
Cotton Textiles
5.Which of the following is true?
  1. GDP Deflator captures the average price of an unchanging basket of commodities that constitutes the GDP of a country.
  2. GDP Deflator can be used to calculate the real GDP of a country but not the inflation rate.
1 only
6.From which of the following are blood clotting factors released?
  1. RBCs
  2. Eosinophils
  3. Platelets
  4. Monocytes
3 only
7.Which of the following is correct?
  1. A price index captures the change in the average price of a constant basket of commodities.
  2. If the price index takes values 100, 110, and 121 in three consecutive years respectively, then the inflation rates in the 2nd and 3rd year are 10% and 21% respectively.
Both 1 and 2
8.Which of the following is correct?
  1. Most of India's reserves is held in the form of foreign currency.
  2. There is no cost of holding foreign currency as reserves by a nation.
1 only
9.Which of the following is not correct?
  1. The market mechanism over-produces a good that generates a positive externality.
  2. A cap and trade of pollution permits can be used by the government to achieve the social optimum.
  3. The optimal amount of subsidy in the case of an activity that produces a positive externality is the difference between social benefit and private benefit at the optimum.
  4. Tragedy of Commons is an example of a negative externality.
1 only
10.Which of the following are included in M1 Definition of money for the Indian economy?
  1. Reserves
  2. Currency
  3. Time deposits
  4. Demand deposits
2 and 4
11.Pulse is felt due to the rhythmic contraction and relaxation of the 
  1. Chambers of heart
  2. valves in veins
  3. aorta and main arteries
  4. valves of heart
3 only
12.An antibacterial enzyme in saliva and tears is called
  1. ribozyme
  2. lipase
  3. lysozyme
  4. isomerase
3 only
13.When eggs are heated, the transparent liquid portion around the yolk turns solid and turbid white. This happens due to the thermal denaturation of:
  1. fats
  2. proteins
  3. ribose sugars
  4. carbohydrates
2 only
14.The causal organism of dengue fever is a mosquito-borne virus that belong to the category:
  1. Flavi-ribo virus
  2. Adenovirus
  3. Vaccinia virus
  4. Nipah virus
1 only
15.Which of the following biosphere reserves is spread across three states in India?
  1. Nilgiri
  2. Achanakmar-Amarkantak
  3. Seschalam
  4. Agasthyamali
1 only
16.Who among the following filed the Writ Petition that led to the famous verdict of the Supreme Court of India recognizing the Right of Privacy as a fundamental right?
  1. Justice P.N. Bhagwati
  2. Justice Rohinton Fali Nariman
  3. Justice K.S. Puttaswamy
  4. Justice Anil R. Dave
Justice K.S. Puttaswamy
17.The 7th edition of Indian Ocean Conference was held in:
  1. Dhaka
  2. New Delhi
  3. Male
  4. Perth
Perth
18.The Indian Army launched 'Operation Sarvashakti' to flush out terrorists in:
  1. Myanmar
  2. Manipur
  3. Jammu & Kashmir
  4. Chhattisgarh
Jammu & Kashmir
19.Which of the following cities were conferred with the cleanest city award Swachh Survekshan Awards, 2023?
  1. Varanasi & Prayagraj
  2. Indore & Surat
  3. Prayagraj & Indore
  4. Surat & Varanasi
Indore & Surat
20.Which one of the following is an indigenous assault rifle developed by DRDO?
  1. Heckler
  2. T91
  3. Tikka
  4. Ugram
Ugram
21.The rest mass of Higgs boson is estimated to be close to
  1. 0.5 MeV
  2. 900 MeV
  3. 100 GeV
  4. 1000 GeV
100 GeV
22.Which greenhouse gas has the maximum average residence time in the atmosphere?
  1. CFC
  2. CH4
  3. N2O
  4. Water Vapour
N2O
23.Microbodies found to be present in plant and animal cells contain
  1. broken down membranes
  2. enzymes
  3. acidic fluids
  4. waste metabolites
Enzymes
24.Which of the following is an amphoteric oxide?
  1. MgO
  2. P4O10
  3. Na2O
  4. Al2O3
Al2O3
25.Which of the following is known as cetane?
  1. Hexadecane
  2. Heptadecane
  3. Octadecane
  4. Nonadecane
Hexadecane
26.Which of the following catalytic systems is used for the reduction of unsaturated hydrocarbon to saturated hydrocarbon?
  1. Copper and H2
  2. Iron and H2
  3. Zinc and H2
  4. Nickel and H2
Nickel and H2
27.Which of the following has been an early Chola painting discovered at Brihadisvara Temple, Thanjavur in 1931?
  1. Buddha with Chauri-bearers on either side
  2. Shiva as Yogi-Dakshinamurti
  3. Yakshi Kali
  4. Parshvanatha with snake-hood on lion-throne
Shiva as Yogi-Dakshinamurti
28.Which of the following is the first commercial space station?
  1. Axiom Station
  2. International Space Station
  3. Galileo
  4. Voyager 1
Axiom Station
29.Which of the following is not a ferromagnetic material?
  1. Cobalt
  2. Iron
  3. Silver
  4. Ferric Chloride
Silver
30.On a day when I am in a hurry to go to office, I have fixed quantity of rice that was just cooked and kept in a bowl. In order to cool it quickly, which of the following is the best option?
  1. Let it be kept on the table in a room where there is no fan, no air conditioner
  2. Let it be kept in a room with AC set at a temperature around 23oC and a ceiling fan (or table fan) operating at slow speed.
  3. Let it be kept in a bowl of water with the ceiling fan (or table fan) operating at full speed
  4. Let it be kept in a bowl of water at room temperature only
Let it be kept in a bowl of water with the ceiling fan (or table fan) operating at full speed

Elementary Mathematics

Serial Number

Question

Answer

1.

Is xy positive?

  1. x = 3√0.19683
  2. y = 3√x

Yes

2.A person bought a book at 3/4th of its listed price and sold it at 50% more than its listed price. What is the percentage of gain the transaction?
  1. 20%
  2. 40%
  3. 75%
  4. 100%
100%
3.If m:n = 1: 2 and p:q = 3:4, then what is (2m + 4p): (n+ 3q) equal to?
  1. 1:1
  2. 1:3
  3. 2:1
  4. 2:3
1:1
4.If the difference between the interior and exterior angles of a polygon is 144 degrees then how many sides does the polygon have?
  1. 12
  2. 16
  3. 18
  4. 20
20
5.If the rate of interest is 5%, what would be the difference between compound interest and simple interest received on INR 10,000 each after 3 years from now?
  1. INR 175.25
  2. INR 152.25
  3. INR 76.25
  4. INR 24.25
INR 76.25
6.If 2 is zero of a polynomial p(x) = x3 + 3x- 6x - a, then what is the sum of squares of the other zeros of this polynomial?
  1. 10
  2. 17
  3. 21
  4. 37
17
7.ABC is a right angled triangle, right angled at B such that AB = 8 cm and BC = 6 cm. What is the perimeter of the square inscribed in the triangle ABC with maximum area?
  1. 96/7 cm
  2. 24/7 cm
  3. 24 cm
  4. 32 cm
96/7
8.What is the greatest value of k for which 2x2 + 4x - k = 0 has real roots?
  1. 1
  2. 2
  3. 3
  4. 4
2
9.If n is a natural number, then what is the sum of all distinct remainders of 4+ 6n + 9n + 11n when divided by 10 for various values of n?
  1. 3
  2. 4
  3. 6
  4. 7
4
10.What is the digit at the 100th place of the number (225)40?
  1. 6
  2. 5
  3. 4
  4. 2
6
11.If a, b, c, d are all natural numbers then how many possible remainders are there when 1a + 2b + 3+ 4d is divided by 10?
  1. 3
  2. 4
  3. 5
  4. 6
6
12.When the number (12345678910111213..........99100) is divided by 16, what will be the remainder?
  1. 15
  2. 12
  3. 4
  4. 3
4
13.What is the smallest natural number n such that (n+1) x n x (n-1) x (n-2) x .... 3x 2 x 1 is divisible by 910?
  1. 91
  2. 90
  3. 13
  4. 12
12
14.The expression 555777 + 777555 is divisible by which of the following?
  1. 2
  2. 3
  3. 37
2
15.A plank of wood 4.25 m long and 3.4 m wide is to be cut into square pieces of equal size. How many square pieces of the largest size can be cut from plank, if no wastage is allowed?
  1. 45
  2. 90
  3. 400
  4. 500
500

UPSC CDS 1 2024 Marking Scheme

The UPSC CDS 1 marking scheme is a tool that must be used along with the answer key in order to estimate the rough score of a candidate based on the number of questions they have correctly or incorrectly answered on the test. The UPSC CDS marking scheme is as follows:

Specifications 

English 

GK 

Mathematics 

Maximum marks

100

100

100

Marks for the correct answer

+1 mark for each correct option

+1 mark for each correct option

+1 mark for each correct option

Negative marking

-0.33 marks for each wrong answer

-0.33 marks for each wrong answer

-0.33 marks for each wrong answer

Also Read:

UPSC CDS Result Expected Release Date 2024UPSC CDS 1 2024 Expected Cutoff

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